By Drew Joseph :
September 23, 2013

The investigation into the shooting death of a man by an off-duty Bexar County sheriff's deputy is ongoing and officials are now waiting for an independent analysis of the forensic evidence, the Sheriff's Office posted in a Facebook message Monday.

Deputy Anthony Thomas on Aug. 31 used his service weapon to shoot and kill Mathew Jackson, 29, on Loop 1604 on the Northeast Side. Thomas, a 16-year veteran, has been on leave since then.

Jackson's family has said they have been left frustrated that many of their questions have not been answered, but in the Facebook post, the Sheriff's Office emphasized an investigation like this “is not a quick or simple process.”

“When this analysis is returned we will have much more information,” the post said.

Thomas left his off-duty security guard job about 5 a.m., about the same time Jackson, who worked at the 20nine Restaurant and Wine Bar in the Quarry Market, was leaving the home of a friend he had visited after his shift ended at 2 a.m.

There was some sort of traffic incident involving the sedans each man was driving, and they pulled over on the side of the road between Lookout and Nacogdoches roads where they got into an “altercation,” authorities have said.

Jackson died at the scene.

“During these early stages of the investigation, we have met with members of Mr. Jackson's family and their attorney, keeping them apprised of the investigation,” the Facebook post said. “We will continue to keep them updated.”

Officials will turn over the results of their investigation to the District Attorney's Office for an independent review once they complete it, according to the post.